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I'm glad you hit on points about platform length & block sizes, but I continue to have great concerns with operating in mixed traffic along highly-trafficked corridors. It only takes one stopped car -- even if temporarily -- to bring service to a standstill. While a bus might have difficulty merging to get around such a stoppage, they nonetheless have that capability.

And an even greater concern with mixed traffic rail service: maintenance operations... if there is a breakdown: single-tracking is difficult under shared lane operations -- *especially* along side-alignments -- and potentially outright infeasible under many circumstances (due to design or where liability can be a weighing issue).

One can keep vehicles well-maintained off-site, but it still stands of whether or not we will; and breakdowns do happen even to the best of vehicles. One can also keep well-maintained rails, but even a proactive well-regarded maintenance program will inherently have to occur on-site; that's not something that can be easily performed off-site and might not always fit within overnight-only periods.

by Bossi on Feb 20, 2013 12:33 pm • linkreport

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